Will the placement of a MOCA filter as shown below work to effectively isolate a cable modem from MOCA traffic? The POE filter is shown in red below:
Note that this configuration does not employ a separate splitter downstream of the modem such as is shown on the product information page for WF-803M. For clarity, the configuration that uses a separate splitter is repeated here:
In other words, is "Splitter 2" shown above really necessary? Can't the modem be isolated without the splitter as shown in red in the first configuration above?
I ran into a similar setup when I was trying to isolate MoCA traffic in my home network. The placement of the POE filter makes a big difference—when I didn’t use a dedicated splitter for the modem, I had signal issues and occasional MoCA interference. After some trial and error, I started documenting my network setups and testing configs virtually on Top Cloud. It’s been super helpful for planning before making physical changes. You might find it useful for mapping out and simulating setups like this more cleanly.